Revolving fire-arm



(No Model.)

J. M. MARLIN.

REVOLVING FIRE ARM.

Patented Aug. 9, 1887 TIE HF UNITED STATES PATENT OFFICE.

JOHN M. MARLIN, OF NEV HAVEN, CONNECTICUT.

REVOLVING FlRE' ARiVl.

SPECIFICATION forming part of Letters Patent No. 367,820, dated August 9, 1887.

Application filed March 98, 1887. Serial No. 232,764. (No model.)

To all whom it may concern:

Be it known that I, JOHN M. MARLIN, of New Haven, in the county of New Haven and State of Connecticut, have invented a certain new and useful Improvement in Revolving Fire-Arms, of which the following is a specifieation.

My invention relates to revolving fire-arms; and it consists in certain new and useful constructions and combinations of the different parts'of the same, substantially as hereinafter described, and claimed.

In the drawings, Figure 1 is a top plan View ofa portion of a revolving fire-arm constructed according to my invention. Fig. 2 is a side elevation of the same. Fig. 3 is an end view of the same, looking forward from the dotted line as a: of Fig. 2. Fig. 4 is a front end view of the revolving cylinder. Fig. 5 is a side view of a portion of the same nearest the front end. Figs. 6, 7, and S are respectively side, top, and end views of the gravity-catch which holds the cylinder in place.

The revolving firearm to which my improvements are applied and of which the parts immediately connected therewith are shown, is the well-known pattern in which the cylinder revolves upon a fixed central pin, and the cylinder and frame and its method of attachment to the barrel and the breech and lock mechanism will be readily understood from the parts shown without further illustration of the arm.

B is the barrel of the arm. It is provided with a longitudinal extension, b, over the cylinder, the rear end of which is locked to the frame by the well-known form of pivoted'latch I). For this purpose the extension I) has a recess, b cut into and through its rear end, and the frame has a stud or projection (not shown) fitting this recess and slotted in the usual manner through its center to receive the bar I) of latch b, the head or cross-bar of the latch dropping down behind it and locking the parts together, when the barrel is turned on the pivot-bearing d, by which it is connected to the frame underneath, all of which will be well understood without further description. The latch b is pivoted upon the pin 1)", and is held down at its outer end by the spring s, secured to the extension by screw to.

C is the revolving cylinder, which revolves on the pin 0. It has a tubular extension on its forward end surrounding the pin,

Through this collar a slot, 0", is cut, and a pin, 0, on the barrel is fitted to pass through said slot, when the cylinder is placed on pin 0 and turned in the proper directions, thus allowing the cylinder to be properly seated on its pin 0. To hold the cylinder in place on pin 0 a catch, 6, pivoted in the extension I), drops down hehind the cylinder when the latter is in place on its pin, as described. This catch is pivoted at e loosely to the extension I) in a recess formed at the forward side of the recess I)", so as to drop down behind the cylinder C by gravity when the arm is held in position for tiring, with the extension I) uppermost. It is also located in such a position that the bar I) of latch 12 will rest upon its upper side when the latch is down, as shown in Figs. 2 and The latch b also has a cam portion, If, which is brought in contact with the catch 0 when latch b is fully raised, thus holding it down at that time; but when the latch b is raised half-way up, and just before the cam part b comes in contact with catch 6, the latter may be lifted up, thus allowing the cylinder to be taken off its pin 0. The free end of catch 0 has a projection, 6 upon it, which enters a vertical slot in the wall of recess 0*, as shown by dotted lines in Fig. 3, and steadiesit and prevents undue leverage upon its pivot 0. By thus employing the gravity-catch c and holding it down by the latch b at all times, except when the latter is raised halfway up, I provide with the greatest certainty againstthe eylinderbeing allowed to escape from pin 0 by the accidental raising of the catch, since the lifting of the and on the outer end of this extension a collar, 0. 1

latch I) does not raise the catch, and it is held down by gravity when the arm is in position for firing, and it must be lifted by the operator, or the arm inverted to remove the catch from behind the cylinder, even when the latch is raised halfway, as described.

' The cam I) may be omitted :fromlatch Zr and still allow the gravity-catch c to operate practically well, if preferred.

What Iclaim as new and 1. The combination of the pin 0, the cylinof my invention ICO der 0, revolving thereon, the barrel-extension 3. The combination of the pin 0, the cylinand the gravity-catch e, adapted to fall by der 0, revolving thereon, the barrel-extension 15 its weight behind the cylinder when the ex- 6, the gravity-catch e, adapted-to fall by its tension is uppermost, and to be lifted from beweight behind the cylinder and to be lifted 5 hind the cylinder to release the same from its therefrom, and the latch I), provided with cam position upon pin a, substantially as described. part b adapted to bear upon said catch when 2. The combination of the pin 0, the cylinup or down, and to allow the same to be lifted 2o der 0, revolving thereon, the barrel-extension when at an intermediate point in its path of I), the gravity-catch 6, adapted to fall by its movement, substantially as described.

IO weight behind the cylinder and to be lifted JOHN M. MARLIN.

therefrom, and the latch b, adapted to bear \Vitnesses: upon said catch and hold the same in position 0. F. DEMMER,

behind the cylinder, substantially as described. J. F. LAWLOR. 

